Problems calling methods with arrays.

I decided to write my first genetic algorithm today for fun, but I am getting many ".class expected" errors that seem to have something to do with the way I use arrays. (I've never used arrays like this before, so there's probably something really simple that I'm not understanding about them.)
The goal of the program is to create a 16 bit binary sequence that matches the one given using genetic-style methods.
As I'm new to this, there are probably better ways of doing this, but thats not really the issue.